You want to use RMAN to create compres

You want to use RMAN to create compressed backups.Which statement is true about the compression algorithms that RMAN can use?（）

A The BZIP2 compression algorithm consumes more CPU resources than the ZLIB compression algorithm.
B The ZLIB compression algorithm consumes more CPU resources than the BZIP2 compression algorithm.
C The ZLIB compression algorithm provides maximum compression and produces smaller backups than the BZIP2 compression algorithm.
D Only the BZIP2 compression algorithm can be used to make compressed backups to disk.

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